CN218332191U

CN218332191U - Compound out-of-focus lens for preventing and relieving myopia

Info

Publication number: CN218332191U
Application number: CN202222223963.0U
Authority: CN
Inventors: 朱海林
Original assignee: Jiangsu Perfect Optical Co ltd
Current assignee: Jiangsu Perfect Optical Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-01-17
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a compound out of focus lens of prevention and release myopia, it includes: a central optical zone located in the center of the lens body; the outer defocusing optical area is positioned on the outer side of the lens body and is annularly arranged on the outer side of the central optical area; the defocusing units are arranged in the outer defocusing optical area, and the arrangement interval of the defocusing units is gradually increased from an inner ring to an outer ring; an inner optical curved surface located inside the lens body. The utility model discloses a set up at the lens surface and from the focus district, the inside optics curved surface of cooperation lens internal surface can more effectually widen the visual area, can not cause eye fatigue because of relapse switching when far and near switch, can carry out fine protection to the eye, avoids the visual area narrow in the past, along with the visual area conversion, with eye fatigue's trouble.

Description

Compound out-of-focus lens for preventing and relieving myopia

Technical Field

The utility model belongs to the technical field of out of focus lens, specifically speaking relates to a compound out of focus lens of prevention and release myopia.

Background

As the adolescent period is the period of rapid development of the body, and meanwhile, in the learning process, the eye using requirement is very large, eyeballs need to be frequently adjusted, the extensibility is large, and the myopia is easy to form. The long-term wearing of the glasses has the habit of wearing the glasses both for far and near, so that the eyes are inevitably disordered, eyeballs are excessively stressed, and the nausea cycle caused by the continuous increase of the degrees of the glasses is caused.

The common myopia glasses only meet the requirements of far vision, are not suitable for the habits of far vision and writing of teenagers, are not in accordance with the eye using mechanism of the teenagers, and when the eyes are switched from far vision to near vision, the eyeball axis cannot follow up the adjustment of the change speed, so that the object to be seen is behind the eyeball axis, and the eye fatigue can be caused after the eye axis is repeatedly used for many times, thereby further deepening the myopia degree. Therefore, the design of the optical defocusing lens capable of effectively controlling the degree of eyes and the increase of the axis of eyes is significant.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the technical problem that a compound out of focus lens of prevention and release myopia is provided, this lens is through setting up at the lens surface from the focal region, and the inside optics curved surface of cooperation lens internal surface can more effectual widening visual area, can not cause eye fatigue because of the switching repeatedly when far and near switches, can carry out fine protection to the eye, avoids the visual region in the past narrow, along with the visual region conversion, with eye fatigue's trouble.

In order to solve the technical problem, the utility model discloses a compound out of focus lens of prevention and release myopia, it includes: a central optical zone located in the center of the lens body;

the outer defocusing optical area is positioned on the outer side of the lens body and is annularly arranged on the outer side of the central optical area;

the defocusing units are arranged in the outer defocusing optical area, and the arrangement interval of the defocusing units is gradually increased from an inner ring to an outer ring;

be located the inboard inside optics curved surface of lens body, inside optics curved surface includes: the optical lens comprises an inner optical convex surface and an inner optical concave surface, wherein the position of the inner optical convex surface corresponds to the central optical area, the position of the inner optical concave surface corresponds to the outer out-of-focus optical area, and the inner optical convex surface and the inner optical concave surface are in curved surface transition.

According to an embodiment of the present invention, the central optical area is circular.

According to an embodiment of the present invention, the diameter of the central optical zone is 18-25mm.

According to the utility model discloses an embodiment, wherein above-mentioned out of focus unit sets up to diameter 0.1mm-1.5 mm's circular, and out of focus unit is the indent state.

According to an embodiment of the present invention, the height of the recess of the defocusing unit is 2 μm to 5 μm.

According to an embodiment of the present invention, the height of the concave portion of the inner optical concave surface is 20-40 μm.

Compared with the prior art, the utility model discloses can obtain including following technological effect:

through setting up the focus area at the lens surface, the inside optics curved surface of cooperation lens internal surface can more effectual widen visual area, can not cause eye fatigue because of the switching of relapse during far and near switching, can carry out fine protection to the eye, avoids the previous visual area narrow, along with the visual area conversion, with eye fatigue's trouble.

Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a front view of a composite out-of-focus lens for preventing and alleviating myopia according to an embodiment of the present invention;

fig. 2 is a side view of a compound out-of-focus lens for preventing and relieving myopia according to an embodiment of the present invention.

Reference numerals

The lens comprises a lens body 10, a central optical area 20, an outer out-of-focus optical area 30, an out-of-focus unit 31, an inner optical curved surface 40, an inner optical convex surface 41 and an inner optical concave surface 42.

Detailed Description

The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Referring to fig. 1 and 2, fig. 1 is a front view of a composite out-of-focus lens for preventing and relieving myopia according to an embodiment of the present invention; fig. 2 is a side view of a compound out-of-focus lens for preventing and relieving myopia according to an embodiment of the present invention.

As shown, a compound out-of-focus lens for preventing and relieving myopia, comprising: a central optical zone 20 located in the center of the lens body 10; an outer out-of-focus optical zone 30 located outside the lens body 10, and the outer out-of-focus optical zone 30 is annularly arranged outside the central optical zone 20; a plurality of defocus units 31 disposed in the outer defocus optical zone 30, wherein the arrangement intervals of the defocus units 31 become gradually larger from the inner circle to the outer circle; an inner optical curved surface 40 located inside the lens body 10, the inner optical curved surface 40 comprising: an inner convex optical surface 41 corresponding in position to the central optical zone 20, and an inner concave optical surface 42 corresponding in position to the outer out-of-focus optical zone 30, the inner convex optical surface 41 and the inner concave optical surface 42 being in curved transition.

In one embodiment of the present invention, a central optical zone 20 is located at the center of the lens body 10. An outer out-of-focus optical zone 30 is disposed outside the lens body 10, and the outer out-of-focus optical zone 30 is disposed around the outer side of the central optical zone 20. A plurality of defocus units 31 are arranged in the external defocus optical zone 30, and the arrangement intervals of the defocus units 31 gradually increase from the inner ring to the outer ring.

Preferably, the defocus unit 31 is disposed in a circular shape having a diameter of 0.1mm to 1.5mm, and the defocus unit 31 is in a concave state. The height of the depression of the defocus unit 31 is 2 μm to 5 μm. When the user sees to top or below both sides, because of eyeball and stadia take place great change, utilize out of focus optical principle, adjust out of focus through out of focus unit, provide the out of focus regulation of eye, avoid with the eye excessive, tired problem, realize slow transition, the advantage that eye muscle relaxs. The defocusing unit is convenient to form, and diopter is improved.

Be located lens body 10 inboard and be equipped with inside optics curved surface 40, inside optics curved surface 40 includes: an inner convex optical surface 41 corresponding in position to the central optical zone 20, and an inner concave optical surface 42 corresponding in position to the outer out-of-focus optical zone 30, the inner convex optical surface 41 and the inner concave optical surface 42 being in curved transition. Preferably, the concave height of the inner optically concave surface 42 is 20-40 μm. The inner optical convex surface 41 and the inner optical concave surface 42 are arranged, so that the defocusing adjusting effect of the defocusing unit can be increased, and the eye defocusing adjustment can be performed more efficiently.

In a preferred embodiment, central optical zone 20 is circular and has a diameter of 18-25mm to provide a central area that is satisfactory for daily use.

To sum up, the utility model discloses a set up at the lens surface and leave the focal zone, the inside optics curved surface of cooperation lens internal surface can more effectual widening visual area, can not cause eye fatigue because of the switching that relapses when far and near switches, can carry out fine protection to the eye, avoids the visual area narrow in the past, along with the visual area conversion, with eye fatigue's trouble.

The foregoing description shows and describes several preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A compound out-of-focus lens for preventing and relieving myopia, comprising:

a central optical zone located in the center of the lens body;

an outer out-of-focus optical zone located outside the lens body, the outer out-of-focus optical zone being disposed around the outside of the central optical zone;

the defocusing units are arranged in the external defocusing optical area, and the arrangement intervals of the defocusing units are gradually increased from an inner ring to an outer ring;

an inner optical curve located inside the lens body, the inner optical curve comprising: an inner optical convex surface corresponding in position to the central optical zone, and an inner optical concave surface corresponding in position to the outer out-of-focus optical zone, the inner optical convex surface and the inner optical concave surface being in curved transition.

2. A composite through-focus lens for the prevention and relief of myopia according to claim 1, wherein the central optical zone is circular.

3. A composite through-focus lens for the prevention and relief of myopia according to claim 2, wherein the central optical zone is 18-25mm in diameter.

4. A composite out-of-focus lens for preventing and relieving myopia according to claim 1, wherein the out-of-focus unit is configured in a circular shape with a diameter of 0.1mm to 1.5mm, and the out-of-focus unit is in a concave state.

5. A composite through-focus lens for preventing and relieving myopia according to claim 4, wherein the depression height of the out-of-focus unit is 2 μm to 5 μm.

6. A composite through-focus lens for the prevention and relief of myopia according to claim 1, wherein the height of the depression of the inner optical concave surface is 20-40 μm.